Homeowner checklist

Heat pumps: air-source, cold-climate and ground-source systems

Use these steps to plan, check and keep a record of your next actions.

• Request room-by-room heating and cooling loads and local design conditions.
• Compare output and COP for the exact matched equipment at relevant temperatures.
• Ask how backup heat, defrost and controls will operate.
• Review room coverage and humidity control during mild weather.
• Keep design assumptions, commissioning results and maintenance responsibilities.

Notes & questions to follow up